Thomas curtis



(No Model.)

. T. CURTIS.

p, Q INEXTI-NGUISHABLE SELF IGNITING SIGNAL LAMP.

' No. 253,850. Patented Feb. 7,1882.

Z. 'Z Zg S3332 7000'J 1 0 0 7L- f :v .3030; 0 2 2 0% Z w WlTNESSES INVENTOR N, PETERS. Phnln-Lilhognpher. wmin m. n. a

UNITED STATES v PATENT OFFICE.

THOMAS CURTIS, on QOALA,-FLA., ASSIGNOR or ONE-HALF To D. 0. CRANE AND A. A. THOMAS, OF WASHINGTON, DISTRICT OF COLUMBIA.

INEXTINGUISHABLE SELF-lGNl'l'lNG SIGNAL-LAMP.

SPECIFICATION forming part of Letters Patent No. 253,350, dated February '7, 1862.

Application filed November 19, 1881.

To all whom it may concern Be it known that I, THOMAS CURTIS, a citizen of the United States, resident at Ocala, in the county of Marion and State of Florida, haveinvented certain new and useful Im provements in Inextinguishable Self-Igniting Signal-Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanyin g drawing, and to letters or figures of reference marked thereon, which forms a part of this specification.

This invention has relation to lamps for use in burning compositions of calcium and phosphorus and it consists in the construction and novel arrangement, in connection with the hollow body or reservoir, of thenpper or burner tube, having a stop-cock and screw-connection, the lower tube having its end extended into the reservoir and perforated, the perforated wall in the reservoir around the inside end of the lower tube, and the stop-cock in said tube, all as hereinafter set forth, and especially pointed out in the claim appended.

In the accompanying drawing, the letter a designates the zinc bodyor receiver of the lamp, which is usually constructed with a conical upper portion, terminating in an open neck, b, which is threaded to receive the screw-stem c of the burner d. This stem is formed with an annular shoulder, 0, next the thread, and an annular packing, g, is placed between this shoulder and the neck b, in order that the joint may be perfectly air-tight. In the burner d is placed a stop-cock, h.

Fixed in the bottom of the body a is the inlet-tube k, which extends downward froin'the bottom I, and is provided with astop-cock, h. The upper end, m, of this tube projects within the receptacle a, and is perforated with a number of small holes usually, as indicated in the drawings. Around this end of the tube is 10- (No model.)

cated a perforated wall or guard, n, which is secured to the bottom of the receiver and serves to prevent small pieces of the composition from falling into the tube. It also forms a chamber, 2, around the end mot" the tube, into which water is admitted. o

A float, f, made of cork, wood, or other suitable material, is used in connection with the receiver. The float is made with a central aperture, t, for the lower stem or tube, 70, and a seat, 8, is usually formed in the float to keep the lamp steady.

The lamp is prepared for use by removing the burner from the neck and filling the receiver throngh the opening in the top as full as possible. The burner is then. screwed on, and both stop-cocks being closed, the lamp is ready for use. It is important that the lamp should be perfectly air-tight. When it is to be used it is placed on the water and both stop-cocks opened. It will then showaflame, which will continue until the material is exhausted. The flame-of this composition being unquenchable by wind or water, the lamp will be found invaluable for use on the water where I shipping interests are concerned. 0

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s-- The air-tight lamp-body at, having the screwneck b, packing g, screw-burner d, and stopcook it at its upper end, and at its lower end the down wardly-extendin g inlet-tube k, its perforated upper end, m, within the receiver, the perforated inclosing-wall n of the chamber 2 around said end,'and the lower stop-cock, h, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS CURTIS.

Witnesses:

ZE. BUTT, SAML. E. MARSHALL. 

